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Nov. ,27, 1928. 1,693,428

r A. R. ATTEBERRY El AL STOVE PIPE F iled March 10, 1927 Patented Nov.27, 1928.

UMTE stares ADEN R. ATTEBERRY AND IRA J. BLALOCK, F STAPLE ToNInEBRASKA,lssrenolis OF ONE-THIRD T0 CLARENCE E. MILLS, or STAPLETON, NEBRASKA.

STOVEPIPE.

Application filed March 10, 1927.

The invention relates to stove pipes, and has for its object to providea stove pipe section formed from a single sheet of material bent tocylindrical form with its edges in overlap )ed relation and providedwith longitudinally disposed rolls for the reception of an elongatedmember, which channeled member holds the pipe section to form.

A further object is to providev adjacent the ends of the pipe sectionribs, which ribs are adapted to be received in channels of adjacentelbows or pipe sect-ions for securely locking the same together when thechanneled member is forced to place.

A further object is to provide the pipe section with an inwardlyextending annular rib adjacent the center thereof, which rib may be usedfor interlocking purposes when the pipe section is cut in half.

A further object is to terminate the rolls at points spaced from one ofthe ends of the pipe section, thereby allowing the reception of the endof an adjacent pipe section without interference from the rolls.

\Vith the above and other objects in view the invention resides in thecombination and arrangement of parts as hereinafter set forth and shownin the drawing, described and claimed, it being understood that changesin the precise embodin'ient of the invention may be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawing z-- Figure. 1 is a perspective view of the pipe sectionshowing the channel in position to be applied thereto.

Figure- 2 is a side elevation of the pipe section showing an elbowattached.

Figure 3 is an enlarged horizontal sectional view taken on line ofFigure 2.

Figure at is an enlarged horizontal sectional view taken on line 4-4 ofFigure 2.

Referring to the drawing the numeral l designates the pipe section,which pipe sec tion is longitudinally split. whereby when it is drawntogether its portions 2 and 3 will overlap as clearly shown in Figures 3and 4. The portion 3 is provided with a longitudinally disposed roll 4and the portion 2 is pro- Serial No. 174,175.

vided with a similarly shaped roll 5 formed from one single piece ofmaterial, and which rolls 4 and 5 when forced into longitudinalengagement contract the pipe section into cylindrical form and receivethereon the elongated channeled member 6, which channeled membersecurely holds the pipe section in contracted condition and incombination with the overlapped portion 2, prevents escape of productsof combustion which pass through the pipe. Channel member 6 is cut intolengths measuring the same as one pipe section and when channel member 6is in place it is half on one pipe section and. half on another. Therolls 4 and 5 terminate spaced from the end 7 of the pipe sect-ion,whereby an adjacent similarly constructed pipe section can be receivedthereon, and the inwardly extending annular rib 8 can be received in thechannel 9, thereby allowing a long run of pipe to be formed if desired,or the device to be attached to an elbow 10. Pipe section 1 at a pointspaced from the longitudinal center thereof is provided with an annularinwardly extending rib 11, and by being spaced from the longitudinalcenter it will be seen that the pipe may be cut in half when de sired,and the rib 11 will be properly positioned for connecting to an adjacentpipe section.

From the foregoing it will be seen that a stove pipe section is providedwhich can be easily and quickly assembled and if desired shipped in afiat form and then bent to cylindrical form, and by providing thechanneled member 6. and the ribs, pipe sections can be positively lockedtogether or to elbows thereby obviating the present diflicultyexperienced with stove pipe sections as at present constructed andjoined, which are a comni-on source of trouble and annoyance with jointscoming apart. It will also be seen that the device is simple inconstruction, the parts reduced to a. minimum, and the same may becheaply manufactured and sold.

The invention having been set forth what is claimed as new and useful isA stove pipe section longitudinally split, thereby forming adjacentedges, one of said edges being provided With an outwardly curved flange,said flange being formed by bending the material onto itself therebyform ing a double thickness, the last named flange having an integralflange concentric with the pipeuaingl ngaging the inner side-tot thepipe under tlae ldtliefis'dge theme s'aid 1a'sti named edge having anoutwardly curved flange, said outwardly curved flange terminating in arib, and a channeled member in which the rib and first mentioned flangeis 10 disposed.

In testimony whereof we hereunto aflix our signatures.

A'D'EN R. ATTEBERRY. IRA BLALOCK.

